Title: Development of eco-compatible polymers with cyclodextrins for the treatment of wastewater from the textile industry

Authors: Micaela Parra; Laura G. Lima; Ana Lía Rossi; Mónica G. Parisi; Adriana M. Rosso; Jorgelina A. Rodríguez Gastón

Addresses: Departamento de Ciencias Básicas, Universidad Nacional de Luján, Luján, Buenos Aires, 6700, Argentina ' Departamento de Tecnología, Universidad Nacional de Luján, Luján, Buenos Aires, 6700, Argentina ' Departamento de Ciencias Básicas, Universidad Nacional de Luján, Luján, Buenos Aires, 6700, Argentina ' Departamento de Ciencias Básicas, Universidad Nacional de Luján, Luján, Buenos Aires, 6700, Argentina ' Departamento de Ciencias Básicas, Universidad Nacional de Luján, Luján, Buenos Aires, 6700, Argentina ' Departamento de Ciencias Básicas, Universidad Nacional de Luján, Luján, Buenos Aires, 6700, Argentina

Abstract: Textile industries generate polluting effluents that affect both soil and water quality. Dyes present in wastewater are considered important contaminants; these are not biodegradable. Indigo dye in fabric dyeing generates contaminated wastewater, this is the case in Luján (Argentina). The use of cyclodextrins (CDs), cyclic molecules of natural origin derived from starch, is a new and effective treatment for removing dyes. Due to their water solubility, it is not possible to use them in remediation without immobilisation on a support to the formation of non-toxic and eco-compatible CDs-Sepharose polymers. βCD complexes were compared with a mixture of αβγCDs obtained in our laboratory. The removal of the indigo dye using βCD-Sepharose polymers and mixture of CDs was 49% and 52%, respectively after 5 min of contact with a solid/liquid ratio of 4g/12 mL.

Keywords: sepharose; cyclodextrin; indigo dye; removal; polymers; inclusion complexes; textile industry; wastewater; polluting effluents; starch; cyclodextrin glucosyltransferase; adsorption.

DOI: 10.1504/IJENVH.2020.115807

International Journal of Environment and Health, 2020 Vol.10 No.2, pp.133 - 144

Received: 01 Apr 2020
Accepted: 15 Sep 2020
Published online: 23 Jun 2021 *

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